There were elections in 1909 to the United States House of Representatives:
| District | Incumbent | This race | |||
|---|---|---|---|---|---|
| Member / Delegate | Party | First elected | Results | Candidates | |
| Louisiana 2 | Robert C. Davey | Democratic | 1892 1894 (Retired) 1896 |
Incumbent member-elect died during previous congress. New member elected March 30, 1909. Democratic hold. |
|
| Ohio 21 | Theodore E. Burton | Republican | [data missing] | Incumbent member-elect resigned during previous congress. New member elected April 20, 1909. Republican hold. |
|
| Illinois 6 | William Lorimer | Republican | [data missing] | Incumbent resigned June 17, 1909, after being elected to the U.S. Senate. New member elected November 23, 1909. Republican hold. |
|
| Washington 2 | Francis W. Cushman | Republican | 1898 | Incumbent died July 6, 1909. New member elected November 2, 1909. Republican hold. |
|
| Philippines at-large | Pablo Ocampo | Democratic | 1907 | Term ended November 22, 1909. New delegate elected November 23, 1909. Nacionalista gain. |
|
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